Question

2. Identifying related samples Aa Aa E For each of the following research scenarios, decide whether the design uses a related sample. If the design uses a related sample, identify whether it uses matched subjects or repeated measures. (Note: Researchers can match subjects by matching particular characteristics, or, in some cases, matched subjects are naturally paired, such as siblings or married couples.) Lorrin Koran has studied whether antidepressants are effective for treating kleptomania. Suppose that people with kleptomania typically score 72 on the Barratt Impulsiveness Scale. You want to see whether kleptomaniacs who are taking antidepressants score lower on the impulsiveness scale than the population average. The design described does not use a related sample uses a related sample (matched subjects) uses a related sample (repeated measures) A researcher is interesteu IT WITeLer people eat Thore ui Tess Wiren urley are in a hurry. The researcher collects a random sample of 80 adults and invites them to eat two identical) free meals one month apart. For one of the meals, no time restriction is placed on the meal. For the other meal, participants are told when their meal is served that they have only 10 minutes until another group is due to sit down. Half of the participants eat their hurried meal first; the other half eat it second. The researcher compares the amount eaten at each sitting. The design described uses a related sample (matched subjects) .

Answer 1

1) here as we are comparing the population subset (Kleptomaniacs )from total population

does not use a related sample

2)

as both the treatment use same subjects

it is uses a related sample (repeated measure)